The correct answer is: d) All of the above.
Meghalaya’s geological history is a complex one, with the region having been subjected to a variety of geological processes over time. These include marine submergence, volcanic activity, and glaciation.
The first evidence of life in Meghalaya dates back to the Precambrian period, when the region was part of a larger landmass known as Gondwana. During this time, Meghalaya was covered by a shallow sea, and the remains of marine organisms can be found in the region’s sedimentary rocks.
In the Mesozoic era, Meghalaya was once again part of a larger landmass, this time known as Laurasia. During this time, the region was subjected to volcanic activity, and the remains of volcanoes can be found in the Meghalaya’s Shillong Plateau.
The last major geological event to affect Meghalaya was glaciation. During the Pleistocene glaciation, the region was covered by a large ice sheet, which left behind a number of glacial features, including moraines and cirques.
The geological history of Meghalaya is a fascinating one, and the region’s diverse landscape is a testament to the many geological processes that have shaped it over time.
Here is a brief explanation of each option:
- Marine submergence: Meghalaya was once covered by a shallow sea, and the remains of marine organisms can be found in the region’s sedimentary rocks.
- Volcanic activity: The remains of volcanoes can be found in the Meghalaya’s Shillong Plateau.
- Glaciation: During the Pleistocene glaciation, the region was covered by a large ice sheet, which left behind a number of glacial features, including moraines and cirques.